International passengers arriving at Miami International Airport are waiting in line up to two hours to be processed.

Despite the delays, some took the long wait in stride.

"Everyone is well-behaved." said London passenger Jennifer Moline. "Everyone's kind of tired because we just came off of a 10 hour flight, but I've seen the hall more packed than it was, so at least there was a good amount of oxygen."

MIA issued a statement via Twitter, saying "A nationwide @CBP outage is causing delays in processing international arrivals. @CBPFlorida officers are working to process passengers as quickly as possible but you may experience delays. We thank you for your patience during this time."